Physiological Signal Analysis of Peripheral Arteries by Pulse Wave Characteristics

• Main Authors: ZHI-XIANG FAN, 范智翔
• Other Authors: Kang-Ping Lin
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/70970454543295251842

碩士 === 中原大學 === 電機工程研究所 === 103 === Heart rate variability (HRV) can be applied to observe the autonomic nervous system activity of human beings. With the development of wearable device technology, the PPG signal is often applied to measure pulse rate and furthermore to analyze the pulse rate variability (PRV), considered to be equivalent to HRV. However, the heart rate is affected by depth and speed of breath that causes different results when HRV and PRV are measured on different locations. Based on the characteristics of the respiratory sinus arrthymia (RSA), the beat rate and tide volume of breath were controlled and the variability of PPG and ECG signals were discussed; furthermore, the characteristics of peripheral arteries were evaluated. Several PSG applied were respiration rate measured with sitting position, and ECG signals and PPG variability of four limbs to analyze the SDNN of normal to normal beat. It was found that obvious difference ( p <0.05) shown between HRV and PRV when normal young groups were controlling different beat rate and tide volume; however, no obvious ones shown on the PRV of four limbs. To analyze based on age, obvious difference between upper limbs and lower ones was shown on the PTT of young group instead of the elderly. Therefore, the result showed there are difference between PRV and HRV during breath.